<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>第一个人修改了标题</title>
    <link rel="stylesheet" type="text/css" href="all.css" />
</head>


<body>
    <div class="main-head">
        <h3>公司名称</h3>
    </div>

    <div class="main-container">
        <div class="main-sidebar">
            <ul>
                <li><a href="./navigation/home.html" target="content-frame">首页</a></li>
                <li><a href="./navigation/company.html" target="content-frame">公司简介</a></li>
                <li><a href="./navigation/course.html" target="content-frame">课程详情</a></li>
                <li><a href="./navigation/team.html" target="content-frame">团队体系</a></li>
                <li><a href="./navigation/products.html" target="content-frame">产品服务</a></li>
                <!-- <li><a href="https://mp.weixin.qq.com/s/QceSVKdlK18gbW3r5bPO9A" target="content-frame">往期成果</a></li> -->
                <li><a href="results.html" target="content-frame">往期成果</a></li>
                <li><a href="news.html" target="content-frame">最新动态</a></li>
                <li><a href="contacts.html" target="content-frame">联系我们</a></li>
            </ul>
        </div>

        <div class="content-container">
            <iframe id="content-frame" name="content-frame" src="./navigation/home.html" title="内容区域"
                loading="lazy"></iframe>
        </div>
    </div>

    <div class="main-footer">
        <p>© 2025 公司名称 版权所有</p>
    </div>

    <h1>可删，这是git_study增加的</h1>

    <h2>可删，这是git_study增加的</h2>

    <h3>可删，这是git_study增加的</h3>

    <h1>这是fixbug分支新增的代码</h1>
    <h1>这是fixbug分支新增的代码</h1>
    <h1>这是fixbug分支新增的代码</h1>


    <button onclick="alert('这是fixbug分支新增的代码')">点击我</button>
    <h1>这是fixbug分支新增的代码</h1>
</body>

</html>